CN103160163B - Ink composition for electrowetting display and electrowetting display including the same - Google Patents
Ink composition for electrowetting display and electrowetting display including the same Download PDFInfo
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- CN103160163B CN103160163B CN201210364749.5A CN201210364749A CN103160163B CN 103160163 B CN103160163 B CN 103160163B CN 201210364749 A CN201210364749 A CN 201210364749A CN 103160163 B CN103160163 B CN 103160163B
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- China
- Prior art keywords
- pigment
- electrowetting display
- ink composite
- display ink
- modification
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- 239000000203 mixture Substances 0.000 title abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 160
- 239000012454 non-polar solvent Substances 0.000 claims abstract description 15
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims description 81
- 230000004048 modification Effects 0.000 claims description 36
- 238000012986 modification Methods 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 29
- 239000003795 chemical substances by application Substances 0.000 claims description 26
- 239000006185 dispersion Substances 0.000 claims description 26
- 239000000758 substrate Substances 0.000 claims description 20
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 9
- 230000004308 accommodation Effects 0.000 claims description 7
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- NRCMAYZCPIVABH-UHFFFAOYSA-N Quinacridone Chemical compound N1C2=CC=CC=C2C(=O)C2=C1C=C1C(=O)C3=CC=CC=C3NC1=C2 NRCMAYZCPIVABH-UHFFFAOYSA-N 0.000 claims description 3
- PGEHNUUBUQTUJB-UHFFFAOYSA-N anthanthrone Chemical compound C1=CC=C2C(=O)C3=CC=C4C=CC=C5C(=O)C6=CC=C1C2=C6C3=C54 PGEHNUUBUQTUJB-UHFFFAOYSA-N 0.000 claims description 3
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 claims description 3
- JOUDBUYBGJYFFP-FOCLMDBBSA-N thioindigo Chemical compound S\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2S1 JOUDBUYBGJYFFP-FOCLMDBBSA-N 0.000 claims description 3
- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 239000007767 bonding agent Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N sec-butylidene Natural products CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 2
- HQODYWHDMASLQN-UHFFFAOYSA-N O1C=COC=C1.N1=NN=CC=C1 Chemical compound O1C=COC=C1.N1=NN=CC=C1 HQODYWHDMASLQN-UHFFFAOYSA-N 0.000 claims 1
- PXZQEOJJUGGUIB-UHFFFAOYSA-N isoindolin-1-one Chemical compound C1=CC=C2C(=O)NCC2=C1 PXZQEOJJUGGUIB-UHFFFAOYSA-N 0.000 claims 1
- MZYHMUONCNKCHE-UHFFFAOYSA-N naphthalene-1,2,3,4-tetracarboxylic acid Chemical compound C1=CC=CC2=C(C(O)=O)C(C(=O)O)=C(C(O)=O)C(C(O)=O)=C21 MZYHMUONCNKCHE-UHFFFAOYSA-N 0.000 claims 1
- FVDOBFPYBSDRKH-UHFFFAOYSA-N perylene-3,4,9,10-tetracarboxylic acid Chemical compound C=12C3=CC=C(C(O)=O)C2=C(C(O)=O)C=CC=1C1=CC=C(C(O)=O)C2=C1C3=CC=C2C(=O)O FVDOBFPYBSDRKH-UHFFFAOYSA-N 0.000 claims 1
- LLBIOIRWAYBCKK-UHFFFAOYSA-N pyranthrene-8,16-dione Chemical compound C12=CC=CC=C2C(=O)C2=CC=C3C=C4C5=CC=CC=C5C(=O)C5=C4C4=C3C2=C1C=C4C=C5 LLBIOIRWAYBCKK-UHFFFAOYSA-N 0.000 claims 1
- 230000002209 hydrophobic effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 61
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 40
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 36
- 229910052726 zirconium Inorganic materials 0.000 description 36
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 24
- 239000003153 chemical reaction reagent Substances 0.000 description 22
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 22
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 22
- 238000002360 preparation method Methods 0.000 description 21
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 20
- 239000002904 solvent Substances 0.000 description 20
- 238000002156 mixing Methods 0.000 description 19
- 238000012360 testing method Methods 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 11
- 239000000047 product Substances 0.000 description 11
- 235000010288 sodium nitrite Nutrition 0.000 description 11
- 238000004090 dissolution Methods 0.000 description 10
- 239000012065 filter cake Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- KLPPPIIIEMUEGP-UHFFFAOYSA-N 4-dodecylaniline Chemical compound CCCCCCCCCCCCC1=CC=C(N)C=C1 KLPPPIIIEMUEGP-UHFFFAOYSA-N 0.000 description 5
- NZMRGMNHTBRSKC-UHFFFAOYSA-N C(CCCCC)C1=CC=C(N)C=C1.C(CCCCC)C1=CC=C(N)C=C1 Chemical compound C(CCCCC)C1=CC=C(N)C=C1.C(CCCCC)C1=CC=C(N)C=C1 NZMRGMNHTBRSKC-UHFFFAOYSA-N 0.000 description 5
- 239000000975 dye Substances 0.000 description 5
- 229920000767 polyaniline Polymers 0.000 description 5
- 239000006229 carbon black Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- WGLLSSPDPJPLOR-UHFFFAOYSA-N 2,3-dimethylbut-2-ene Chemical group CC(C)=C(C)C WGLLSSPDPJPLOR-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- RFAFBXGYHBOUMV-UHFFFAOYSA-N calcium chromate Chemical compound [Ca+2].[O-][Cr]([O-])(=O)=O RFAFBXGYHBOUMV-UHFFFAOYSA-N 0.000 description 2
- 150000001721 carbon Chemical class 0.000 description 2
- PPSZHCXTGRHULJ-UHFFFAOYSA-N dioxazine Chemical compound O1ON=CC=C1 PPSZHCXTGRHULJ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000001052 yellow pigment Substances 0.000 description 2
- WCIUBXAVJGKRCO-UHFFFAOYSA-N 2,3-dihydroisoindol-1-one Chemical compound C1=CC=C2C(=O)NCC2=C1.C1=CC=C2C(=O)NCC2=C1 WCIUBXAVJGKRCO-UHFFFAOYSA-N 0.000 description 1
- SHHIUWFOBYRJAM-CMDGGOBGSA-N C/N=N/c1ccccc1 Chemical compound C/N=N/c1ccccc1 SHHIUWFOBYRJAM-CMDGGOBGSA-N 0.000 description 1
- QOPGDYVYMAUXLU-UHFFFAOYSA-N C1(=C(C(=C(C2=CC=CC=C12)C(=O)O)C(=O)O)C(=O)O)C(=O)O.C1(=C(C(=C(C2=CC=CC=C12)C(=O)O)C(=O)O)C(=O)O)C(=O)O Chemical compound C1(=C(C(=C(C2=CC=CC=C12)C(=O)O)C(=O)O)C(=O)O)C(=O)O.C1(=C(C(=C(C2=CC=CC=C12)C(=O)O)C(=O)O)C(=O)O)C(=O)O QOPGDYVYMAUXLU-UHFFFAOYSA-N 0.000 description 1
- XQVDUNNOOALHKQ-UHFFFAOYSA-N C1(CC=CC=2C3=CC4=CC=C5C=C6C=CC=CC6=C6C=C7C=CC(=CC12)C3=C7C4=C56)=O.C5(CC=CC=6C4=CC7=CC=C3C=C1C=CC=CC1=C1C=C2C=CC(=CC56)C4=C2C7=C31)=O Chemical compound C1(CC=CC=2C3=CC4=CC=C5C=C6C=CC=CC6=C6C=C7C=CC(=CC12)C3=C7C4=C56)=O.C5(CC=CC=6C4=CC7=CC=C3C=C1C=CC=CC1=C1C=C2C=CC(=CC56)C4=C2C7=C31)=O XQVDUNNOOALHKQ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical compound CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000006149 azo coupling reaction Methods 0.000 description 1
- 239000001055 blue pigment Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- VPWFPZBFBFHIIL-UHFFFAOYSA-L disodium 4-[(4-methyl-2-sulfophenyl)diazenyl]-3-oxidonaphthalene-2-carboxylate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC(C)=CC=C1N=NC1=C(O)C(C([O-])=O)=CC2=CC=CC=C12 VPWFPZBFBFHIIL-UHFFFAOYSA-L 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- MEKIDXJMUADXGX-UHFFFAOYSA-N perylene-1,2,3,4-tetracarboxylic acid Chemical compound C1(=C(C(=C2C(=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)C(=O)O)C(=O)O)C(=O)O)C(=O)O.C4(=C(C(=C5C(=CC=C2C3=CC=CC1=CC=CC(C4=C52)=C31)C(=O)O)C(=O)O)C(=O)O)C(=O)O MEKIDXJMUADXGX-UHFFFAOYSA-N 0.000 description 1
- 230000000176 photostabilization Effects 0.000 description 1
- 229940067265 pigment yellow 138 Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
- C09B67/0085—Non common dispersing agents
- C09B67/009—Non common dispersing agents polymeric dispersing agent
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
- G02B2207/115—Electrowetting
Abstract
The invention provides an electrowetting display ink composition and an electrowetting display comprising the same. The electrowetting display ink composition comprises: a non-polar solvent; and a modified hydrophobic pigment having a structure represented by formula : P-GnFormula (I) wherein P is the residue of a pigment molecule and n is 1-4; and G isWherein R is1Is C4-20Linear or branched alkyl of, or C5-20A cycloalkyl group of .
Description
[technical field]
The present invention relates to a kind of ink composite, particularly a kind of ink composite for Electrowetting display.
[background technology]
The principle of Electrowetting display (Electrowetting Display) is to utilize wetting (Electrowetting) phenomenon of electricity or electrochemical kapillary (Electrocapillary) phenomenon.When fluid is subject to electric field action and changes the surface free energy (Free Surface Energy) of fluid, the distribution area of fluid is changed.
In general the composition that the opaque ink that, electric wet-type display uses is generally allocated by dyestuff (dye).The demand of applying out of doors due to indicating meter improves, and the opaque ink that electric wet-type display uses must have the feature such as low voltage drive and high-weatherability.But, because photostabilization and the thermotolerance of dyestuff are not good, be not enough to reach the specification as outdoor indicating meter, therefore limit the development of electric wet-type display.
Industry proposes to replace dye type printing ink composition with the opaque ink with pigment.For making electric wet-type display reach low voltage drive, the pigment particle size using in composition must reach nanoscale.But in the time that pigment particles reaches nanoscale, due to surface-area and surface energy increase, according to the second law of thermodynamics, pigment particles must tend to assemble.The existing practice is to add more dispersion agent to stablize ink composite, but the consumption of dispersion agent improves the viscosity rise that has but caused whole ink composite, has reduced the responsiveness of electric wet-type display.
Based on above-mentioned, industry needs a kind of novel opaque ink composition, solves the problem that existing electric wet-type display runs into.
[summary of the invention]
The invention provides a kind of Electrowetting display ink composite, have the pigment through modification, wherein this pigment through modification has high hydrophobicity, and is not easy to reunite, and therefore has good dispersiveness.By adding of this pigment through modification, the Electrowetting display ink composite of gained can have the advantages such as low viscosity, low surface tension, low-k and low driving voltage, can be applicable on general electric wet-type display (EWD) or other energy-saving display devices.
Electrowetting display ink composite of the present invention, comprises:
Non-polar solvent; And through the hydrophobicity pigment of modification, wherein this hydrophobicity pigment through modification has the structure shown in formula (I):
P-G
nformula (I)
Wherein, the residue that P is pigment molecule, n is 1-4; And
G is
wherein R
1for C
4-20straight chain or branch's alkyl or C
5-20cycloalkyl.
According to other embodiments of the invention, the present invention also provides a kind of Electrowetting display, comprises: first substrate; Be arranged at the transparent electrode layer on this first substrate; Be arranged at the dielectric layer on this transparent electrode layer; Directly be arranged at the barrier wall structure on dielectric layer; Second substrate and this first substrate subtend arrange, and wherein between this first substrate and this second substrate, define accommodation space; And transparent polar solution and above-mentioned Electrowetting display ink composite, be disposed in this accommodation space.
For above and other object of the present invention, feature and advantage can be become apparent, cited below particularly go out preferred embodiment, and coordinate appended graphicly, be described in detail below:
[brief description of the drawings]
Fig. 1 is according to the cross-sectional view of the Electrowetting display described in the embodiment of the present invention.
[main description of reference numerals]
10 ~ first substrate;
12 ~ transparent electrode layer;
14 ~ dielectric layer;
16 ~ barrier wall structure;
18 ~ second substrate;
20 ~ accommodation space;
22 ~ transparent polar solution;
24 ~ Electrowetting display ink composite; And
100 ~ Electrowetting display.
[embodiment]
Electrowetting display ink composite of the present invention comprises: non-polar solvent; And through the hydrophobicity pigment of modification, wherein this system of hydrophobicity pigment through modification is dispersed in this non-polar solvent.
Hydrophobicity pigment through modification of the present invention can have the structure shown in formula (I):
P-G
nformula (I)
Wherein, the residue that P is pigment molecule, n is 1-4; And
G is
wherein R
1for C
4-20straight chain or branch's alkyl or C
5-20cycloalkyl.For instance, R
1can be normal butane base, normal hexane base, octane base, dodecyl, tetradecyl or eicosyl.According to one embodiment of the invention, R
1it is 0.1-95%, for example R that group can account for this ratio through the hydrophobicity pigment total molecular weight of modification
1it is 0.5-20% that group can account for this ratio through the hydrophobicity pigment total molecular weight of modification.Work as R
1group accounts for this ratio through the hydrophobicity pigment total molecular weight of modification when too low, and the dispersion effect of the pigment obtaining is poor; But R
1group accounts for this ratio through the hydrophobicity pigment total molecular weight of modification when too high, although the dispersion effect of gained pigment improves, can cause overall ink viscosity to increase, and causes driving voltage to increase with actuating speed slack-off.
According to one embodiment of the invention, this hydrophobicity pigment through modification can be the product of pigment through hydrophobicity functional groupization step gained, and this step comprises: the aniline group with straight chain or branch's alkyl or cycloalkyl structure is imported and had in the pigment molecule of phenyl group with diazo coupling reaction.For instance, this preparation method through the hydrophobicity pigment of modification can comprise following steps: first, the compound will with structure shown in formula (II) reacts with hydrochloric acid and Sodium Nitrite, is prepared into the have formula diazo reagent of (III); Then, pigment (for example having the pigment of phenyl group) is dissolved in hydrochloric acid, and adds this diazo reagent with formula (III) to carry out coupled reaction, the hydrophobicity pigment through modification shown in (I) that obtains thering is formula.
Formula (II) formula (III)
P-G
nformula (I)
(residue that P is pigment molecule, n is 1-4; And G is
).
According to certain embodiments of the invention, above-mentioned used pigment can comprise azo (azo) pigment, phthalocyanine (phthalocyanine) pigment, quinacridone (quinacridone) pigment, flavanthrone (flavanthrone) pigment, anthanthrone (anthanthrone) pigment, pyranthrone (pyranthrone) pigment, thioindigo (thioindigo) pigment, dioxazine (dioxazine) pigment, isoindolinone (isoindolinone) pigment, perylene tetracarboxylic acid (perylene tetracarboxylic acid) pigment, naphthalene tetracarboxylic acid (naphthalenetetracarboxylic acid) pigment, or pigment lake, these pigment can form this hydrophobicity pigment through modification via above-mentioned hydrophobicity functional groupization.For instance, the pigment of wanting for being modified can be coloured pigment, for example red pigment, can be Pigment Red 122 (Pigment red, azo pigment), Pigment Red 202 (azo pigment), Pigment Red 206 (azo pigment), PigmentRed 209 (azo pigment), Pigment Red 177 (azo pigment), Pigment Red 254 (azo pigment) according to Color Index numbering; And yellow ultramarine can be Pigment Yellow 13 (Pigment Yellow 73, azo pigment), Pigment Yellow 55 (azo pigment), Pigment Yellow 119 (azo pigment), Pigment Yellow 138 (azo pigment material), Pigment Yellow 139 (azo pigment), Pigment Yellow 168 (azo pigment), PigmentYellow 150 (azo pigment); And veridian can be Pigment Green 7 (Pigment green, azo pigment), Pigment Green 36 (azo pigment); And blue pigments can be Pigment Blue 15:3 (Pigment blue, azo pigment), Pigment Blue 15:4 (azo pigment), Pigment Blue 15:6 (azo pigment) etc.; And violet pigment can be pigment V23 (azo pigment).
In addition,, according to other embodiments of the invention, pigment used in the present invention can be the not pigment of containing metal element.
In general, add pigment in ink composite, its major function is to provide opacifying property.Therefore, the particle diameter control of pigment is very important.This particle diameter through the hydrophobicity pigment of modification of the present invention can be between 1-150nm, if the driven nature of the too large ink composite of this hydrophobicity pigment particle size through modification is not good.This particle diameter through the hydrophobicity pigment of modification can be controlled between 20-150nm, so that composition has compared with low viscosity and higher stability in storage.It can be for example physical grinding processing that the present invention is used for controlling and disperseing the mode of this pigment, this physical grinding mode can comprise following: by powder pigment or pigment and the abundant mixed powder of dispersion agent, use ball mill to give specific pressure and treatment time, can stably be dispersed in solution state with the granular size that makes granules of pigments itself.
Non-polar solvent of the present invention can be any can dispersing hydrophobic pigment and be the solvent of inertia for the component of ink composite.According to one embodiment of the invention, this non-polar solvent can be selected from dodecane, decane, tetramethyl-ethylene, naphthane (mixing), p-Xylol, 1,3,5-Three methyl Benzene, 1,2,3,4-tetraline and Isorpar-G (isoparaffin solvent oil).Electrowetting display ink composite of the present invention, the weight percent of this non-polar solvent is 50-99wt%, this weight percent through the hydrophobicity pigment of modification is 1-50wt%, and this weight percent is taking this non-polar solvent and this gross weight through the hydrophobicity pigment of modification as benchmark.According to one embodiment of the invention, the weight percent of this non-polar solvent can be controlled in 75-85wt%, this weight percent through the hydrophobicity pigment of modification can be controlled in 15-25wt%, this ratio can guarantee that the indicating meter ink composite of gained has the character of low viscosity and high screening rate, and the usefulness of display unit rapid answer is provided.
In addition, Electrowetting display ink composite of the present invention, can also comprise dispersion agent (for example: nonionic surface active agent, high-molecular type dispersing agent), contribute to effectively to control pigment particle size and distribute, to increase pigment and solution phase capacitive and to increase the dispersiveness of pigment at this non-polar solvent.It should be noted that the hydrophobicity pigment through modification of the present invention, owing to being not easy to reunite, therefore can reduce the addition of dispersion agent.Electrowetting display ink composite of the present invention also can optionally add other compositions, for example demulsifying agent, defrother, smooth dose or bonding agent.In addition, ink composite of the present invention can comprise other mineral dyes, for example carbon black, graphite and metal oxide (for example titanium nitride, silicon-dioxide, titanium dioxide, barium oxide, calcium carbonate), and the above-mentioned auxiliary agent of arranging in pairs or groups is made the ink that EWD uses.Based on above-mentioned, Electrowetting display ink composite of the present invention has low viscosity (between 1-15cps), low surface tension (between 20-30mN/m), low-k (between 1-20) and suitable surface charge value (between 5-30mv).
The present invention also provides a kind of Electrowetting display, please refer to Fig. 1.This Electrowetting display 100 can comprise: first substrate 10; Be arranged at the transparent electrode layer 12 on this first substrate 10; Be arranged at the dielectric layer 14 on this transparent electrode layer 12, wherein this dielectric layer 14 has water repellent surface character; Directly be arranged at the barrier wall structure 16 on dielectric layer 14, wherein this barrier wall structure 16 has hydrophilic surface character; Second substrate 18 and these first substrate 10 subtend settings, wherein have accommodation space 20 between this first substrate 10 and this second substrate 18; For example, and transparent polar solution 22 (water) and above-mentioned Electrowetting display ink composite 24, be disposed in this accommodation space 20.
For above and other object of the present invention, feature and advantage can be become apparent, multiple embodiment cited below particularly and comparing embodiment, illustrate Electrowetting display ink composite of the present invention and the Electrowetting display that comprises it.
Through the preparation of the hydrophobicity pigment of modification
Preparation example 1:
First, get reaction flask and add 29.15g hydrochloric acid and 5.0g concentrated sulfuric acid dissolution 2.04g 4-n-hexyl aniline (4-n-hexylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.44g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Pigment Y138 that another reaction flask adds 2g, and add the 100g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment Y138 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 300g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.99g product MCLY1.The reaction formula of above-mentioned reaction is as follows:
Preparation example 2:
First, get reaction flask and add 21.43g hydrochloric acid and 5g concentrated sulfuric acid dissolution 1.49g dodecyl polyaniline (4-dodecylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.45g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Pigment Y138 that another reaction flask adds 1g, and add the 50g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment Y138 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 200g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.2g product MCLY2.The reaction formula of above-mentioned reaction is as follows:
Preparation example 3:
First, get reaction flask and add 16g hydrochloric acid and 4g concentrated sulfuric acid dissolution 1.02g 4-n-hexyl aniline (4-n-hexylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.22g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Blue15:6 that another reaction flask adds 0.9g, and add the 30g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed into and in Blue15:6 solution, carry out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 200g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.1g product MCLB1.The reaction formula of above-mentioned reaction is as follows:
Preparation example 4:
First, get reaction flask and add 21.43g hydrochloric acid and 5g concentrated sulfuric acid dissolution 1.49g dodecyl polyaniline (4-dodecylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.45g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Blue15:6 that another reaction flask adds 0.9g, and add the 5g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed into and in Blue15:6 solution, carry out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 300g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.05g product MCLB2.The reaction formula of above-mentioned reaction is as follows:
Preparation example 5:
First, get reaction flask and add 15.04g hydrochloric acid and 3.5g concentrated sulfuric acid dissolution 1.2g 4-n-hexyl aniline (4-n-hexylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.26g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the pigment V23 that another reaction flask adds 1g, and add the 100g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment V23 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 300g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.3g product MCLV1.The reaction formula of above-mentioned reaction is as follows:
Preparation example 6:
First, get reaction flask and add 21.43g hydrochloric acid and 5g concentrated sulfuric acid dissolution 1.49g dodecyl polyaniline (4-dodecylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.45g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the pigment V23 that another reaction flask adds 1g, and add the 100g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment V23 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 200g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.2g product MCLV2.The reaction formula of above-mentioned reaction is as follows:
Preparation example 7:
First, get reaction flask and add 15.8g hydrochloric acid and 3.5g concentrated sulfuric acid dissolution 1.15g 4-n-hexyl aniline (4-n-hexylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.3g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Pigment Red 254 that another reaction flask adds 1.2g, and add the 100g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment Red 254 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 200g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.3g product MCLR1.The reaction formula of above-mentioned reaction is as follows:
Preparation example 8:
First, get reaction flask and add 22.18g hydrochloric acid and 5g concentrated sulfuric acid dissolution 1.48g dodecyl polyaniline (4-dodecylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.5g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Pigment Red 254 that another reaction flask adds 1.3g, and add the 100g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment Red 254 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 200g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.25g product MCLR2.The reaction formula of above-mentioned reaction is as follows:
Preparation example 9:
First, get reaction flask and add 1.48g hydrochloric acid and 3.5g concentrated sulfuric acid dissolution 0.6g 4-n-hexyl aniline (4-n-hexylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.25g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Pigment Green 36 that another reaction flask adds 1.2g, and add the 100g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment Green 36 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 200g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.32g product MCLG1.The reaction formula of above-mentioned reaction is as follows:
Preparation example 10:
First, get reaction flask and add 22.78g hydrochloric acid and 5g concentrated sulfuric acid dissolution 1.35g dodecyl polyaniline (4-dodecylaniline) to be placed on ice bath to maintain at 5 DEG C, add 0.45g Sodium Nitrite, stirring reaction 1 hour, obtains diazo reagent.Then, get the Pigment Green 36 that another reaction flask adds 1.2g, and add the 100g vitriol oil, completely dissolve and be placed on ice bath.Then, under ice bath, diazo reagent is slowly splashed in Pigment Green 36 solution and carries out coupled reaction, and react 8 hours.Then, reaction soln is splashed in 200g pure water, after filtered several times, use again acetone rinsing filter cake.Finally, at 105 DEG C, dry and after 120 minutes, obtain 1.26g product MCLG2.The reaction formula of above-mentioned reaction is as follows:
The preparation of Electrowetting display ink composite and property detection
Comparing embodiment 1:
First extracting container tank adds the unmodified Pigment R254 of 1.6g and 1.6g dispersion agent (Disperbyk-168), then adds decane (decane) as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (1).Then, ink composite (1) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 2:
First extracting container tank adds the unmodified Pigment R254 of 1.6g and 1.2g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (2).Then, ink composite (2) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 3:
First extracting container tank adds the unmodified Pigment Green 36 of 1.6g (manufactured and sold by BASF) and 1.6g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (3).Then, ink composite (3) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 4:
First extracting container tank adds the unmodified Pigment Green 36 of 1.6g (manufactured and sold by BASF) and 1.2g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (3).Then, ink composite (4) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 5:
First extracting container tank adds the unmodified Pigment Blue of 1.6g 15:6 (manufactured and sold by BASF) and 1.6g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (5).Then, ink composite (5) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 6:
First extracting container tank adds the unmodified Pigment Blue of 1.6g 15:6 (manufactured and sold by BASF) and 1.2g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (6).Then, ink composite (6) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 7:
First extracting container tank adds unmodified Yellow Pigment (yellow ultramarine) Y138 of 1.6g and 1.6g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (7).Then, ink composite (7) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 8:
First extracting container tank adds 1.6g unmodified Yellow Pigment Y138 and 1.2g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (8).Then, ink composite (8) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 9:
First extracting container tank adds the unmodified carbon black of 1.6g (Carbon black is manufactured and sold by Mitsubishi Chemical) and 1.6g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (9).Then, ink composite (9) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Comparing embodiment 10:
First extracting container tank adds the unmodified carbon black of 1.6g (manufactured and sold by Mitsubishi Chemical) ((Disperbyk-168) then adds decane as solvent again with 1.2g dispersion agent.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (10).Then, ink composite (10) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 1:
First extracting container tank adds 1.4g through modified pigment MCLY1 (preparation example 1) and 0.7g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (11).Then, ink composite (11) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 2:
First extracting container tank adds 1.4g through modified pigment MCLY2 (preparation example 2) and 1.4g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (12).Then, ink composite (12) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 3:
First extracting container tank adds 1.5g through modified pigment MCLB1 (preparation example 3) and 0.75g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (13).Then, ink composite (13) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 4:
First extracting container tank adds 1.5g through modified pigment MCLB2 (preparation example 4) and 1.5g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (14).Then, ink composite (14) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 5:
First extracting container tank adds 1.6g through modified pigment MCLR1 (preparation example 5) and 0.8g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (15).Then, ink composite (15) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 6:
First extracting container tank adds 1.3g through modified pigment MCLR2 (preparation example 6) and 0.65g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (16).Then, ink composite (16) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 7:
First extracting container tank adds 1.3g through modified pigment MCLG1 (preparation example 7) and 1.3g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (17).Then, ink composite (17) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Embodiment 8:
First extracting container tank adds 1.5g through modified pigment MCLG2 (preparation example 8) and 0.75g dispersion agent (Disperbyk-168), then adds decane as solvent again.After mixing, add 50g zirconium pearl, after zirconium pearl disperses 2 hours, obtain ink composite (18).Then, ink composite (18) is carried out to the test of viscosity, particle diameter, surface tension, specific inductivity and driving voltage, result is as shown in table 1.
Table 1
As shown in Table 1, preferably disperse particle diameter and viscosity because the pigment of modification has, the display panel that therefore comprises Electrowetting display ink composite of the present invention can have the preferably driving voltage of panel driving speed and reduction.
Although the present invention discloses as above with multiple preferred embodiments, so it is not in order to limit the present invention, any the technical staff in the technical field of the invention, and without departing from the spirit and scope of the present invention, Ying Kezuo is change and retouching arbitrarily.Therefore the scope that, protection scope of the present invention should limit with appended claims is as the criterion.
Claims (17)
1. an Electrowetting display ink composite, comprises:
Non-polar solvent; And
Through the hydrophobicity pigment of modification, there is the structure shown in formula (I):
P-G
nformula (I)
Wherein, the residue that P is pigment molecule, n is 1-4; And
G is
wherein R
1for C
4-20straight chain or branch's alkyl or C
5-20cycloalkyl,
Wherein this particle diameter through the hydrophobicity pigment of modification is 1-150nm.
2. Electrowetting display ink composite as claimed in claim 1, wherein R
1for normal butane base, normal hexane base, octane base, dodecyl, tetradecyl or eicosyl.
3. Electrowetting display ink composite as claimed in claim 1, wherein R
1it is 0.1-95% that group accounts for this ratio through the hydrophobicity pigment total molecular weight of modification.
4. Electrowetting display ink composite as claimed in claim 1, wherein R
1it is 0.5-20% that group accounts for this ratio through the hydrophobicity pigment total molecular weight of modification.
5. Electrowetting display ink composite as claimed in claim 1, wherein the weight percent of this non-polar solvent is 50-99wt%, this weight percent through the hydrophobicity pigment of modification is 1-50wt%, and this weight percent is taking this non-polar solvent and this gross weight through the hydrophobicity pigment of modification as benchmark.
6. Electrowetting display ink composite as claimed in claim 1, wherein the weight percent of this non-polar solvent is 75-85wt%, this weight percent through the hydrophobicity pigment of modification is 15-25wt%, and this weight percent is taking this non-polar solvent and this gross weight through the hydrophobicity pigment of modification as benchmark.
7. Electrowetting display ink composite as claimed in claim 1, wherein this particle diameter through the hydrophobicity pigment of modification is 20-150nm.
8. Electrowetting display ink composite as claimed in claim 1, wherein the viscosity of this Electrowetting display ink composite is 1-15cps.
9. Electrowetting display ink composite as claimed in claim 1, wherein this hydrophobicity pigment through modification be pigment through hydrophobicity functional groupization modification gained, wherein this pigment is azo pigment, phthalocyanine pigment, quinacridone pigment, flavanthrone pigment, anthanthrone pigment, pyranthrone pigments, thioindigo color, triazine dioxin pigment, isoindolinone pigment, perylene tetracarboxylic acid pigment, naphthalene tetracarboxylic acid pigment or pigment lake.
10. Electrowetting display ink composite as claimed in claim 9, wherein not containing metal element of this pigment.
11. Electrowetting display ink composites as claimed in claim 1, wherein the surface tension of this Electrowetting display ink composite is 20-30mN/m.
12. Electrowetting display ink composites as claimed in claim 1, wherein the surface charge of this Electrowetting display ink composite is 5-30mv.
13. Electrowetting display ink composites as claimed in claim 1, wherein the specific inductivity of this Electrowetting display ink composite is 1-20.
14. Electrowetting display ink composites as claimed in claim 1, wherein P has phenyl ring group, and G and this phenyl ring group bond.
15. Electrowetting display ink composites as claimed in claim 1, also comprise:
Dispersion agent.
16. Electrowetting display ink composites as claimed in claim 15, also comprise:
Demulsifying agent, defrother, smooth dose, bonding agent or its combination.
17. 1 kinds of Electrowetting displays, comprise:
First substrate;
Transparent electrode layer, it is arranged on this first substrate;
Dielectric layer, it is arranged on this transparent electrode layer;
Barrier wall structure, it is directly arranged on dielectric layer;
Second substrate and this first substrate subtend arrange, wherein this first substrate, and this second substrate between define accommodation space; And
Transparent polar solution and Electrowetting display ink composite claimed in claim 1, be disposed in this accommodation space.
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| CN108997820B (en) * | 2018-07-25 | 2022-01-07 | 华南师范大学 | Dye microsphere, preparation method thereof, printing ink and electrowetting display device |
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| CN102127340A (en) * | 2010-01-20 | 2011-07-20 | 佳能株式会社 | Ink, ink-jet recording method, and ink cartridge |
| CN102159651A (en) * | 2008-09-19 | 2011-08-17 | 利奎阿维斯塔股份有限公司 | Improvements in relation to electrowetting elements |
| JP2011208107A (en) * | 2010-03-31 | 2011-10-20 | Toyo Ink Sc Holdings Co Ltd | Photocurable inkjet ink and method for producing polymer |
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| CN102127340A (en) * | 2010-01-20 | 2011-07-20 | 佳能株式会社 | Ink, ink-jet recording method, and ink cartridge |
| JP2011208107A (en) * | 2010-03-31 | 2011-10-20 | Toyo Ink Sc Holdings Co Ltd | Photocurable inkjet ink and method for producing polymer |
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